Core covering machine



May 19, 1931. l G, F. MCCAHEY 3,805,494

-CORE COVERING MACHINE y ATTORNEYS.

May 19, 193,11. d A G. MqCAHEY 1,805,494

CORE COVERING MACHINE Filed May 20. 1929 3 SheekS-Sheekl 2 wa/Iw- ATTORNEYS,

May 19, 1931. Q F, MGCAHEY 1,805,494

Filed May 20. 1929 5 Sheets-Sheet 3 lllull w lilll ATTORNEYS.

Patented May 19, 1931 UNITED 'STATES PATENT oFFlcF.

GEORGE F. MCCAHEY OF PROVIDENCE RHODE ISLANDg-ASSIGNOR 0F ONE-HALF 'WILLIAM C. JOHNSON, 0F PROVIDENCE, RHODE ISLALN'D CORE COVERING MACHINE Application mea may 2o, 1929. serial m.'se4,'s6o.

This invention relates to' an improved corecovering machine; and has for its object to provide a machine of, this character which is adapted to wind two strands of material in opposite directions alternately over and under each other about the core to cover the same. l The invention further consists in the Vprovision of means in the machine for feeding the core in the direction o its length and winding two coverings strands in opposite directions about the traveling core to cross. each other twice each revolution.

the invention is to ar- A further object of range the mechanisms of the machine so that v the strands as laid on the core cross each other on diametrically opposite sides of the core, that portion of the strand between the points of crossing being caused to lie in direct contact with the core.

The invention further consists in the provision of a machine for covering the core, the machine being provided with a pair of guide members for laying the covering strands upon the moving core and for revolving these guide members in circles and in opposite directions about the core, the circular paths being disposed to cross each other alternately as the guide members revolve about the core.

A further object of the invention is to provide a ring-shaped gear for carrying one of the strand-laying guide members, the gear having an opening thru its periphery into and out of which the other guide member passeswhile the two guides are caused to revolve in the opposite directions about the core to lay the covering strands upon the. same.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a side elevation of my improvedv core winding machine partly in section.

Fig. 2 is a detail illustrating a portion of the ring gear on which I mount a strandlaying guide member and one of the package carriers, sectioned on line 2 2 of Fig. 1.

Fig. 3 is a plan view showing a section o n `maas'ulan line 3 3 of Fig. 1, and showing the ringshaped gear and the two spaced drive gears thru which the ring gear is revolved, and showing the strand-laying guide spindles in juxtaposition both on the same side of the sore and passing each other in opposite direcions.

Fig.'4 shows the lower guide spindle and the upper guide spindlel as advanced a little more than a quarter turnl in opposite directions from the position shown 1n Fig. 3 and just entering the ring gear thru its peripheral opening.

Fig. 5 shows the upper guide spindle and the lower guide spindle as having advanced approximately three quarters of a turn, and the lower guide spindle as just passing out of the ring` gear thru the opening in its periphery.

Fig. 6 illustrates the two circular paths which are eccentric to each other and thru which paths the different guide members pass during their rotation about the core, which paths .intersect each other.

Fig. 7 is a section on line 7-7 of Fig-5,

showlng the ring gear as mounted upon the` upperl deck member and the parts which form the hub for the gear as supported on the hollw central standard thru which the core 1s e Fig. 8 is a side elevation showing the ring gear detached and in section with the carrier guide spindle mounted thereon.

F1 9 shows the two guide spindles in full and 1n dotted lines, as passing alternately on the inside and on the outside of each other andas then revolving about the core.

Fig. 10'shows a short length of elastic core. j Fig. 11 shows the elastic core in stretched condition with the two sets of strands wound p pon the core while in this'stretched condiion.

Fig;l 12 is a greatly. enlarged view showing the core stretched or extended with the strands laid in opposite directions and crossing each other at intervals along the length of the core.

Fig. 13 is a view of the wound core at right angles to that of Fig. 12, showing the covering strands as disposed alternately over and under each other at their points of crossing.

Fig. 14 is the same as Fig. l2 but showing` the core as being but sli litly stretched or extended with the edges og the covering strands nearly abutting each other.

Fig. 15 shows the core as contracted with the strands imbedded into the body of the softer core.

Fig. 16 shows the core as being laterally distorted into zigzag shape which effect is produced when under excessive tension.

Fi 17 shows a short length of fabric into whic the jacketed threads wound on my improved machine are woven.

My improved machine for laying covering strands onto such cores as wire, elastic threads and the like, may be run at a very high velocity, much faster than the ordinary braiding machine as the covering strand-laying members each rotates in a circle about the core. When covering an elastic core, the core is preferably held under tension during the covering operation and fed in the direction of its length while the two covering strand-laying guide members revolve in opposite directions about tlie coi'e and the mechanism is so arranged that these guide members move in circular paths which are eccentric to each other and which paths intersect each other so that the guide members pass each other in opposite directions twice in each revolution and lay the covering strands alternately over and under each other to bind each other upon the core being covered.

By my present method of winding two covf ering strands about a core the strands themselves serve-as a stop to limit the stretch of the core and when this core is stretched to a considerable degree the opposite diagonal windings cause the core to be distorted laterally thus effectively preventing the core from being withdrawn from its sheath or covering and also prevents the whole thread from being readily withdrawn from the fabric into I' c I n which it is woven.

Then again, in some instances, when it is desired to wind or forni a distinguishing mark into the structureof lthe covering, I may employ at least one of the two covering strands of a distinguishing color or structure; whereby a line or streak is formed along the length of the coveringby this winding of strands upon the core; and the following is a detailed description of the 4present embodiment of my invention and showing one construction of winding machine by which these advantageous results are accomplished:- y

With reference to the drawings, 10 designates the lower deck plate of my improved machine which is supported on the usual legs 11, and 12 designates the upper deck plate which is spaced from and supported on standards 13 from the lower deck plate.

The upper deck plate 12 is provided with a circular channel 13 therethru, see Figs. 6 and 7 and is also provided with a circular recess 14, which two circles provide paths of travel of the two different strand-laying guide members as they revolve about the core, which circular paths intersect each other as shown at 56 and 57.

In the circular groove 14 is mounted a ring gear 16, see Fig. 8, having a guide flange 17 which travels in the gioove14, and this ring gear has an opening 18 in its periphery to permit the passage, both entrance and exit, of one of the guide members, as presently described. i` n A trunnion guide block for thisl ring gear having a part 19, is secured to the deck plate 12 by screws 20 while the art 21 of this block is secured to a section of t e upper deck plate by screws 22 and this whole member including parts 19 and 21, is supported in position lush with the upper deck plate, part 21 being mounted on and secured to the upper end` of the hollow standard 23 by nut 25, the lower end of which is secured to the lower deck plate by means of the nut 24.

In order to wind the two strands in opposite directions about the core 26, I have provided a lower strand laying guide tube 27 which is supported on the arm 28 located below the u per deckplate which arm extends laterally rom the sleeve 29 rotatably mounted on the central tubular standard 23 and this sleeve 29 is revolvable from the pulley 30 thru gears 31, upright shaft 32, ears 33 and 34, the latter gear being secure to the sleeve 2 9 by set screw 39 and carried on this gear, 1s shown the covering strands supply spool 35. The other uide member 36 of the two, is supported at 3 upon the ring gear 16, see Fig. 8, and a supply package or spool 38 is carried on this ring gear to deliver the covering strand thru the eye of this guide tube 36.

This ring gear, owing to the peripheral section being removed therefrom, is driven by a pair of spaced idler gears 41 from the single gear 40. The space between these idler gears is governed by the extent of the opening 18 in the ring gear so that during the time the opening is passing one of these drive gears the teeth are properly enga ed by the other of these drive gears to pro uce an uninterrupted drive of this ring gear.

The core 26 is led from the spool 42 up thru the tubular standard 23, thru the tension control feed device 43, and guide 44 beneath which guide at the point 45 the core is covered by the winding of the two covering Lstrands about it, the covered core 46 is now led about the feed spool 47which is driven in any convenient- 'way thence the thread is taken up by the winding drum 48 above. rIhis feed spool 47 is herein shown as being driven in time with the rest of the machine thru the worin 49, worm gear 50, pinion 51 and gear 52 which rotates the spool shaft 53 iCI) -and the other above said deck plate for in the proper time and the take-up drum 48 is shown as being driven at the proper speed thru a belt 54 from pulley 55.

By my improved construction lof corecovering machine, it will be seen that the two guide tubes or members 27 and 36 thru which the two covering strands are passed are caused to revolve in opposite directions about the core 26` and to follow the circular paths lwhich intersect each other at the points- 56 and 57. IThus these guide members are caused to lay these strands alternately underand over each other upon the core, the crossings being twice each revolution and on dia- F metrically opposite sides of the core, that portion of the strands between the crossings lying directl upon or against the surface of the core t us gripping the core and preventing it from being readily withdrawn from its covering or sheath.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all themechanical changes to which the device is susceptible', the invention being deiined and limited only by the terms of the appended claims.

I claim:

1. In a core-covering machine, core-feeding means, a deck plate, apair of supply packages having strandsy 'forl covering the core, one operatively supportedbelow andA the other operatively supported above saidy deck plate, and a pair of guide members for.

the strands of said packages one supported below and extending through said dec plat, 1 ing the strands from the corresponding y located packages, and means for revolving said guide members in different paths andin o posite directions about the core, said pat s being disposed to cross each other twice' in each revolution to lay the coverin strands alternately under and over each ot er upon the core.

2. In a core-covering machine, core-feeding means, a deck plate, a pair of supply packages having strands for covering the core, one operatively supported 'belowand the other operatively supported above said deck plate, and a palr of guide members for the strands of said packages one supported below and extending .throughsaid deck plate, and the other above saiddeck plate for iding the strands from the corresponding y Iocated packages, vmeans for tensioning the strands leadin from said ackages, and means for revo vin said gui e members in different paths an in opposite directions about the core, said paths being dis sed tol cross each other twice in each-revo ution to.

lay the covering1 strands alternately.. under and over each ot er upon the core.

3. In a core-covering machine, adeck plate,

05 means for supporting a core supplypackage opposite I disposed to cross each other twice 1n plate, and a pair.

yand extending through .below said deck plate, core-feeding means above said deck plate, a pair of supply packages having strands for coverlng the core, and a pair of guide members for the strands of said packages, and said guide members in diierent paths and 1n directions about the core, said paths being each revolution to lay the covering strands alternately under and over each other upon the core.

4. In a core-covering machine, a deck plate,

means for supporting a core supply package below said deck plate, core-feeding means above said deck plate, means for tensioning the core, a pair of supply packages havlng strands for covering the core, and a pair ofvguide members for the strandsorl said packages, and means for revolving said guide members in different paths and in opposite directions about the core, said paths being disposed to cross each other revolution to lay the covering strands alternately under and over each other upon the core.

5. In a core-covering machine, adeck plate,

means for revolving twice in each means for supporting a core supply package below said deck plate, core-feedin means above said deck plate, a pair of supp y packages having strands for covering the core, one operatively supported below and the other operatively supported above said deck of guide members for the strands of said packages one supported below said deck plate, and the other above said deck plate for guiding the strands from the correspondingly located packages, members in diierent paths and in opposite directions about the core, said paths being disposed to cross each other twice in each revolution to lay the coverin strandsalternately under andl over eac other upon the core.

In testimony whereof I aix my si ature.

GEORGE F. MCCAv EY.

and means for revolving said guide v 

